Hangs himself on Skype

Hangs himself on Skype

Russian guy Sergey Kirilov, aged 26, announced online that he would kill himself on Skype depending on how many people wanted to see it. Well, apparently enough responded, with some comments released from the dozens who came to watch:
"Come on, are you ready yet? Go on do it
If a man says he’s going to do something, he needs to do it".
And he proved himself to be a man of his word. He hung himself and now the video is released and the Moscow authorities are in the process of tracking down the people who linked to his Skype and left comments to him.

I wonder at what point does the person go unconscious? I guess all the jerking around after the body goes limp is the body still trying to breathe, even if the person is already unconscious. It's hard to tell, but I'd guess they go out pretty early on. I'm trying to figure out what those sounds were.